class_docstr: Abstract class for parametrized probability distributions.
docstr: Returns the number of inputs to the distribution (i.e. parameters).
docstr_tok: ["Returns","the","number","of","inputs","to","the","distribution","(","i.e",".","parameters",")","."]
code: def n_inputs(self):
      """Returns the number of inputs to the distribution (i.e. parameters)."""
      raise NotImplementedError
  
imports: import gin
  import gym
  import numpy
  from trax import layers
  from trax.fastmath import numpy
label_desc: Use image node_id 1 for calling the Distribution obj's underlying member method code with example usage: obj.n_inputs() without return types